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【判断题】
火彩和亮度是一对矛盾，这两种光学效果都与刻面宝石的全内反射作用有关，全内反射的一部分光线由于折射而产生火彩，另一部分光线则产生亮光。
A.
正确
B.
错误
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】Psychology is the study of the mind and mental activities. For example, psychologists are interested in why some things make you sad, but others make you happy. They want to know why some people are s...
A.
Studying the Mind
B.
Feelings and Behavior of Human Beings
C.
Psychology and Psychiatry
D.
Famous Psychologists
【单选题】物理治疗的神经反射作用为（）
A.
无条件反射
B.
条件反射
C.
先是无条件反射，后出现条件反射
D.
先是条件反射，后出现无条件反射
E.
条件反射与无条件反射同时出现
【单选题】Psychology is the study of the mind and mental activities. For example, psychologists are interested in why some things make you sad, but others make you happy. They want to know why some people are s...
A.
study physical diseases as well
B.
deal with animals more often than with people
C.
are not medical doctors
D.
are interested in things that make you sad
【多选题】在介质没有声吸收衰减的情况下，发生海底全内反射的条件有( )。
A.
海底声速大于海水声速
B.
掠射角小于等于临界角acos(n)
C.
海底声速小于海水声速
D.
入射角小于等于临界角acos(n)